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Single-impulse magnetic focusing of launched cold atoms (2004)
Journal Article
Pritchard, M., Arnold, A., Smith, D., & Hughes, I. (2004). Single-impulse magnetic focusing of launched cold atoms. Journal of Physics B: Atomic, Molecular and Optical Physics, 37(22), 4435-4450. https://doi.org/10.1088/0953-4075/37/22/004

We have theoretically investigated the focusing of a launched cloud of cold atoms. Time-dependent spatially-varying magnetic fields are used to impart impulses leading to a three-dimensional focus of the launched cloud. We discuss possible coil arran... Read More about Single-impulse magnetic focusing of launched cold atoms.

Non-linear Sagnac interferometry for pump-probe dispersion spectroscopy (2003)
Journal Article
Jundt, G., Purves, G., Adams, C., & Hughes, I. (2003). Non-linear Sagnac interferometry for pump-probe dispersion spectroscopy. The European Physical Journal D, 27(3), 273-276. https://doi.org/10.1140/epjd/e2003-00275-5

We explore pump-probe non-linear Sagnac interferometry as a tool to measure the dispersive properties of a medium. We introduce the background theory, and show experimental spectra obtained on the D2 transition with 85Rb and 87Rb. The measured disper... Read More about Non-linear Sagnac interferometry for pump-probe dispersion spectroscopy.

Polarization spectroscopy of a closed atomic transition: applications to laser frequency locking (2002)
Journal Article
Pearman, C., Adams, C., Cox, S., Griffin, P., Smith, D., & Hughes, I. (2002). Polarization spectroscopy of a closed atomic transition: applications to laser frequency locking. Journal of Physics B: Atomic, Molecular and Optical Physics, 35(24), 5141-5151. https://doi.org/10.1088/0953-4075/35/24/315

We study polarization spectroscopy of Rb vapour. A weak probe beam analyses the birefringence induced in a room temperature vapour by a strong counterpropagating circularly polarized pump beam. In contrast to most other work on polarization spectrosc... Read More about Polarization spectroscopy of a closed atomic transition: applications to laser frequency locking.

Hyperfine effects in electromagnetically induced transparency. (2001)
Journal Article
Badger, S., Hughes, I., & Adams, C. (2001). Hyperfine effects in electromagnetically induced transparency. Journal of Physics B: Atomic, Molecular and Optical Physics, 34(22), L749-L756. https://doi.org/10.1088/0953-4075/34/22/107

The role of hyperfine structure in electromagnetically induced transparency (EIT) is investigated by studying the 5S1/2-5P3/2-5D3/2,5/2 cascade system in 85Rb and 87Rb. We show that if the hyperfine splitting Δhfs is larger than the Rabi frequency of... Read More about Hyperfine effects in electromagnetically induced transparency..

Periodic trajectories of cold atoms in a gravitational cavity (2001)
Journal Article
Hughes, I., Darlington, T., & Hinds, E. (2001). Periodic trajectories of cold atoms in a gravitational cavity. Journal of Physics B: Atomic, Molecular and Optical Physics, 34(14), 2869-2880. https://doi.org/10.1088/0953-4075/34/14/308

We study the classical dynamics of an atom bouncing on a concave reflector, which is sometimes called a gravitational cavity. Experiments and simulations have previously shown that atoms released from particular heights exhibit anomalously long stora... Read More about Periodic trajectories of cold atoms in a gravitational cavity.